As a regular user of the Valleys lines from the Rhondda, I'm one of the many thousands of passengers left dismayed, frustrated, squashed and feeling short-changed on a regular basis. Overcrowding has become a major safety issue not just for commuters, but also for staff who bear the brunt of passengers' anger, especially when people are forced to endure cramped conditions. On behalf of staff, who I've received representations from, and on behalf of the many people who use the trains every day, I want to know when we can expect to see more rolling stock—new rolling stock—on the Treherbert line? And I also want to know if there's any truth in what was told to me by a member of Transport for Wales staff that new carriages will not feature toilets?